I think you misunderstood the parent. In this context, 'behind' means less visible, as in a person working in the background. Example: 'Behind every “big break

I think you misunderstood the parent. In this context, 'behind' means less visible, as in a person working in the background. Example: 'Behind every “big break” is a lot of blood sweat and tears.' Example: Giorgio Moroder was behind many smash hits of the 80s.